import grid3; size(8cm,0,IgnoreAspect); currentprojection=orthographic(0.5,1,0.5); scale(Linear, Linear, Log); limits((-2,-2,1),(0,2,100)); grid3(XYZgrid); xaxis3(Label("$x$",position=EndPoint,align=S),Bounds(Min,Min), OutTicks()); yaxis3(Label("$y$",position=EndPoint,align=S),Bounds(Min,Min),OutTicks()); zaxis3(Label("$z$",position=EndPoint,align=(-1,0.5)),Bounds(Min,Min), OutTicks(beginlabel=false));